#include <bits/stdc++.h>
using namespace std;
int main(){
	string e;
	int n;
	cin>>e;
	for(int i=0;i<e.size();i++){
		if(e[i]>='A'&&e[i]<='Z') e[i]='Z'-e[i]+'A';
		else if(e[i]>='a'&&e[i]<='z') e[i]='z'-e[i]+'a';
	}
	cout<<e;
	 
}










/**************************************************************
	Problem: 1133
	User: chenlingxuan
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/